Great Lakes Forecast
Issued by NWS
Issued by NWS
427 FZUS61 KBUF 230203 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1003 PM EDT Thu Oct 22 2026 SLZ022-024-230900- Saint Lawrence River from Cape Vincent to Saint Regis 1003 PM EDT Thu Oct 22 2026 .OVERNIGHT...North winds 5 to 10 knots becoming northeast. Mainly clear. .FRIDAY...Northeast winds 5 to 10 knots. Sunny. .FRIDAY NIGHT...Northeast winds 5 to 10 knots becoming light and variable. Partly cloudy. .SATURDAY...Light and variable winds. Sunny. .SATURDAY NIGHT...Light and variable winds. Mainly clear. .SUNDAY...South winds 10 knots or less becoming southwest. Mainly clear, then becoming partly cloudy. .MONDAY...Southwest winds 10 knots or less becoming north. Partly to mostly cloudy. .TUESDAY...North winds 5 to 10 knots becoming light and variable. Mainly clear. $$